How to customize non-standard cylinder

Refers to the use of non-standard cylinder piston directly or indirectly connected outside actuator, and make it follow the piston reciprocating motion of the cylinder. The advantage of the cylinder is save installation space. Easy to operate, easy to realize automation, easy to implement complex automatic control jD turn order, easy to achieve overload protection. The hydraulic oil viscosity is influenced by environmental temperature, is also not suitable for long distance transmission control. The demand is high, requirements of the device to control the setting up closed-loop control feedback device. According to the controlled variable is mechanical quantities such as displacement, velocity and force, feedback detection device also has a displacement detection device, speed feedback detection device, etc. , make the whole system is complicated, the price rise, also improved the skill requirements for maintenance personnel. Like electric actuators, non-standard cylinder electro-hydraulic actuator feedback control system also USES position feedback device. It increases the control precision of the whole system, improve the dynamic characteristic of the system. But because the price is expensive, pipeline system is complicated, only in need big push thrust and torque of applications to be used. Its characteristics as follows. Under the condition of the same output power, hydraulic transmission device of small volume, light weight, compact structure, small inertia, fast response. Non-standard cylinder hydraulic drive system by the direction of basic control loop, pressure control loop and flow control circuit, etc. Direction control circuit can use directional control valve, check valve, etc. ; Pressure control loop can use pressure relay, pressure reducing valve, etc. ; Flow control loop can be used throttle, speed regulating valve, etc. Also need some auxiliary control circuit, such as balance control loop, discharge pressure control loop, pressurization and growth control circuit, etc. In order to guarantee the normal operation of the electro-hydraulic actuator, usually adopts two sets of hydraulic oil system, including a set of system, another set of backup system.